package main import ( "fmt" "os/exec" "strings" "testing" ) // See issue docker/docker#8141 func TestPullImageWithAliases(t *testing.T) { defer setupRegistry(t)() repoName := fmt.Sprintf("%v/dockercli/busybox", privateRegistryURL) defer deleteImages(repoName) repos := []string{} for _, tag := range []string{"recent", "fresh"} { repos = append(repos, fmt.Sprintf("%v:%v", repoName, tag)) } // Tag and push the same image multiple times. for _, repo := range repos { if out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "tag", "busybox", repo)); err != nil { t.Fatalf("Failed to tag image %v: error %v, output %q", repos, err, out) } if out, err := exec.Command(dockerBinary, "push", repo).CombinedOutput(); err != nil { t.Fatalf("Failed to push image %v: error %v, output %q", err, string(out)) } } // Clear local images store. args := append([]string{"rmi"}, repos...) if out, err := exec.Command(dockerBinary, args...).CombinedOutput(); err != nil { t.Fatalf("Failed to clean images: error %v, output %q", err, string(out)) } // Pull a single tag and verify it doesn't bring down all aliases. pullCmd := exec.Command(dockerBinary, "pull", repos[0]) if out, _, err := runCommandWithOutput(pullCmd); err != nil { t.Fatalf("Failed to pull %v: error %v, output %q", repoName, err, out) } defer deleteImages(repos[0]) if err := exec.Command(dockerBinary, "inspect", repos[0]).Run(); err != nil { t.Fatalf("Image %v was not pulled down", repos[0]) } for _, repo := range repos[1:] { if err := exec.Command(dockerBinary, "inspect", repo).Run(); err == nil { t.Fatalf("Image %v shouldn't have been pulled down", repo) } } logDone("pull - image with aliases") } // pulling an image from the central registry should work func TestPullImageFromCentralRegistry(t *testing.T) { pullCmd := exec.Command(dockerBinary, "pull", "hello-world") if out, _, err := runCommandWithOutput(pullCmd); err != nil { t.Fatalf("pulling the hello-world image from the registry has failed: %s, %v", out, err) } logDone("pull - pull hello-world") } // pulling a non-existing image from the central registry should return a non-zero exit code func TestPullNonExistingImage(t *testing.T) { pullCmd := exec.Command(dockerBinary, "pull", "fooblahblah1234") if out, _, err := runCommandWithOutput(pullCmd); err == nil { t.Fatalf("expected non-zero exit status when pulling non-existing image: %s", out) } logDone("pull - pull fooblahblah1234 (non-existing image)") } // pulling an image from the central registry using official names should work // ensure all pulls result in the same image func TestPullImageOfficialNames(t *testing.T) { names := []string{ "docker.io/hello-world", "index.docker.io/hello-world", "library/hello-world", "docker.io/library/hello-world", "index.docker.io/library/hello-world", } for _, name := range names { pullCmd := exec.Command(dockerBinary, "pull", name) out, exitCode, err := runCommandWithOutput(pullCmd) if err != nil || exitCode != 0 { t.Errorf("pulling the '%s' image from the registry has failed: %s", name, err) continue } // ensure we don't have multiple image names. imagesCmd := exec.Command(dockerBinary, "images") out, _, err = runCommandWithOutput(imagesCmd) if err != nil { t.Errorf("listing images failed with errors: %v", err) } else if strings.Contains(out, name) { t.Errorf("images should not have listed '%s'", name) } } logDone("pull - pull official names") }